JPS6133987B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle advance control method and device for automatically performing preliminary operation of a vehicle using an internal combustion engine (hereinafter referred to as engine) as a prime mover.

Conventionally, this type of device has been the "automatic warm-up device" shown in Japanese Patent Publication No. 47-25289 or the "automatic warm-up device" shown in Japanese Patent Publication No. 47-25290, which starts the engine at the time set by a timer. , the engine is warming up for about 10 minutes.

However, this automatic warm-up device only warms up for about 10 minutes, regardless of the outside temperature and engine coolant temperature at the time of pre-operation, so it may be warmed up depending on the conditions of the outside temperature and engine coolant temperature at the time of pre-operation. There are problems in that the operating time is too short and the warm-up is too long, resulting in unnecessary fuel consumption.

The present invention solves the above problem by determining the time required for preliminary operation of the vehicle based on the temperature required during preliminary operation of the vehicle, and operating the engine for the required time until the scheduled boarding time set in advance. A pre-driving method for a vehicle that can automatically warm up the engine appropriately and complete the warm-up by the scheduled boarding time, and also control the air conditioning at the same time, and the method thereof The purpose of this invention is to provide a device that can appropriately perform the following steps.

The present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is an overall configuration diagram showing one embodiment of the system, in which advance operation control is performed by an on-vehicle microcomputer that executes digital arithmetic processing using software according to a control program including a predetermined advance operation control program. be.

In this Figure 1, 1 is the car battery that generates a voltage of 12 (V), 2 is the key switch, which is turned on manually by the driver, the (OFF) terminal, and the accessory (ACC) terminal. It has an ignition (IG) terminal, and a starter (ST) terminal. 3 is the starter,
The rotational driving force is used to start the engine. Reference numeral 4 denotes an ignition system for controlling the ignition of the four-cylinder engine, which receives power from the on-vehicle battery 1 and generates an ignition high voltage at the ignition timing of the engine to ignite the engine.
Reference numeral 5 denotes an automatic air conditioner, which automatically controls the air conditioning inside the vehicle so that the room temperature of the vehicle approaches a preset temperature. 6 is the outside temperature sensor,
It is installed behind the front grill, detects the outside air temperature, and generates an outside temperature signal according to the outside air temperature. Reference numeral 7 denotes an interior temperature sensor, which is installed on the upper left side of the instrument panel, detects the vehicle room temperature, and generates an interior temperature signal corresponding to the vehicle room temperature.
A water temperature sensor 8 detects the engine cooling water temperature and generates a water temperature signal corresponding to the engine cooling water temperature. The outside air temperature sensor 6, the inside air temperature sensor 7, and the water temperature sensor 8 constitute a temperature detection means, and the outside air temperature signal, the inside air temperature signal, and the water temperature signal form a temperature signal. 9 is a rotation speed detection sensor,
It is installed in the distributor and generates a rotational speed signal proportional to the engine rotational speed at that time. Reference numeral 10 denotes a vehicle speed sensor, which is attached near a rotating magnet in the speedometer and generates an on/off signal as a vehicle speed signal proportional to the vehicle speed. Reference numeral 11 denotes an auto air conditioner switch, which is turned on when starting the auto air conditioner 5 and generates an air conditioner signal. Reference numeral 12 denotes a neutral switch, which is attached to the speed change link mechanism of the vehicle and generates a neutral signal only when the shift lever is in the neutral position. 13 is a handbrake switch, which generates a handbrake signal when the handbrake is pulled.
It also serves as the existing handbrake switch.
Reference numeral 14 denotes a temperature setting device, which is used to set the temperature setting of the automatic air conditioner 5, and generates a digital temperature setting signal corresponding to the temperature setting. Reference numeral 15 denotes a door switch that detects the opening and closing of the door and generates a door signal when the door is open. 16 is the bonnet switch,
It detects opening and closing of the bonnet and generates a bonnet signal when the bonnet is open.
An ignition switch 17 generates an ignition signal when the vehicle key is inserted into the IG terminal of the key switch 2. 18 is an analog/digital signal that converts an analog signal into a digital signal.
Outside temperature sensor 6 with digital (A/D) converter
The external temperature signal from the internal temperature sensor 7, the internal temperature signal from the internal temperature sensor 7, the water temperature signal from the water temperature sensor 8, and the rotational speed signal from the rotational speed detection sensor 9 are sequentially converted into digital signals.

19 is a single-chip microcomputer that executes digital arithmetic processing of software according to a control program including a predetermined advance operation control program, and constitutes the arithmetic processing means, and is equipped with a several megahertz (MHz) crystal oscillator. 20 is connected, and it is activated by receiving a stabilized voltage from a stabilized power supply circuit 21 which generates a stabilized voltage of 5V based on the 12V power supply from the on-vehicle battery 1. This microcomputer 19 is a read-only memory that stores control programs including advance operation control programs that define calculation procedures.
ROM), a central processing unit (CPU) that sequentially reads the control program of this ROM and executes the corresponding arithmetic processing, and this
Random Access Memory; a memory that temporarily stores various data related to the CPU's arithmetic processing and that can be read by the CPU.
The main parts consist of a clock generator (RAM), a clock generator that uses a crystal oscillator 20 to generate reference clock pulses for the various calculations mentioned above, and an input/output (I/O) circuit that adjusts the input and output of various signals. It is made of a single-chip large-scale integrated circuit (LSI). Through its arithmetic processing, the microcomputer 19 issues an engine control signal that controls the supply of electricity to the starter 3 and the ignition system 4, and a cutoff signal that cuts off the power supply to the microcomputer 19.

22 is a first relay circuit, which includes a latch for holding an ignition system signal as an engine control signal and its release signal from the microcomputer 19;
When an ignition system signal is received, the system starts its operation and supplies power to the ignition system 4 and auto air conditioner 5 from the on-vehicle battery 1. 23 is a second relay circuit, which includes a starter relay that energizes the starter 3 from the on-vehicle battery 1 when the starter 3 is closed, a latch that holds the starter signal as an engine control signal and its release signal from the microcomputer 19; The microcomputer 19 is configured with a two-contact switching relay that uses the starter signal and release signal to switch between the path from the ST terminal of the key switch 2 to the starter relay and the path directly from the vehicle battery 1 to the starter relay.
When a starter signal is received from the on-vehicle battery 1, the starter relay is energized, and when a release signal is received, the path from the ST terminal of the key switch 2 to the starter relay is closed. and,
starter 3, ignition system 4, first relay circuit 22,
The second relay circuit 23 constitutes a driving means. A third relay circuit 24 includes a latch that holds the energization signals from the first timer 25 and the second timer 26, and when it receives the energization signal, it energizes the stabilizing power supply circuit 21 from the on-board battery 1. , upon receiving the cutoff signal, the held energization signal is released and the stabilizing power supply circuit 21 is operated from the vehicle battery 1.
This is to cancel the energization to. 25 is a first timer as a time setting means, which includes an oscillation circuit, a counter that calculates the time by counting the oscillation pulses from the oscillation circuit, a time display circuit that displays the time based on this counter, and a driver on board. It consists of a scheduled boarding time display circuit section that displays the scheduled boarding time and a set switch 25a that is turned on when setting the scheduled boarding time, and the counter is set to the count number corresponding to the time when 30 minutes are subtracted from the scheduled boarding time. When the counts match, relay circuit 2
4, it emits an energization signal as a timer signal. A second timer 26 is composed of an oscillation circuit, a counter that calculates the time by counting the oscillation pulses from the oscillation circuit, and a holding circuit that holds the time signal from the microcomputer 19. When a time signal is received, time calculation starts from that point, and when the count number corresponding to the time reaches the count number corresponding to the time signal, an energization signal is issued to the second relay circuit 24 and the microcomputer 19 is started. It emits a start signal. Reference numeral 27 denotes an accelerator drive unit which operates the accelerator 28 by one stroke when it receives an accelerator drive signal from the microcomputer 19. Reference numeral 29 denotes an accelerator switch, which emits an accelerator signal when the accelerator 28 is released and the accelerator position is normal. Reference numeral 30 denotes an auto-choke drive unit, which operates to return the auto-choke by one step when it receives an auto-choke signal from the microcomputer 19.

Next, the operation of the above structure will be explained with reference to the characteristic diagram in FIG. 2 and the calculation flowcharts in FIGS. 3, 4, 5, 6, and 7.

This figure 2 a shows temperature T = outside temperature Ta = inside temperature Tb
This is a characteristic diagram showing the relationship between the temperature T when = engine cooling water temperature Tc and the time ta required for engine operation when air conditioning control is included, and Figure 2b shows the relationship between temperature T = outside temperature Ta = engine cooling. FIG. 2 is a characteristic diagram showing the relationship between the temperature T when the water temperature is Tc and the time tb required for warming up the engine when air conditioning control is not performed.

3 is a calculation flowchart showing the calculation processing of the main routine of the microcomputer 19 according to the control program, and FIG. Calculation flowchart, FIG. 5 is an interrupt calculation flowchart showing the calculation processing of the interrupt routine based on the ignition signal of the ignition switch 17, and FIG. 6 is the detailed calculation of the engine start start timing calculation routine in FIG. 3. FIGS. 7a, b, and c are calculation flowcharts showing detailed calculation processing of the advance operation control calculation routine in FIG. 3.

In this calculation flowchart, a start step indicates the start of calculation processing by the microcomputer 19, and a stop step indicates the start of calculation processing by the microcomputer 19.
9 indicates the end of the calculation process. Furthermore, the interrupt start indicates the start of the arithmetic processing of the interrupt routine. Furthermore, IN indicates the start of each calculation routine, and OUT indicates the end of each calculation routine. Furthermore, . . . shown in FIGS. 7a, b, and c indicate that calculations continue across the respective drawings.

First, the arithmetic processing of this microcomputer 19 will be explained. This microcomputer 19 starts its operation when it is supplied with a stabilized voltage from the stabilized power supply circuit 21, and starts its arithmetic processing at the start step 100 in FIG. The program then proceeds to an initial setting routine 200 to set registers, counters, latches, etc. in the microcomputer 16 to initial states necessary for starting arithmetic processing. To set this initial state, timer data A when the starter is energized is set to A=O, timer data B when the starter is not energized is set to B=O, and timer data C for the time count after the door is opened is set to C=O. ,
It includes an operation in which timer data D for counting time after completion of warm-up and air conditioning is determined by D=O, and number data N is determined by N=O. Then, the process proceeds to a start start time determination step 300, where it is determined whether or not a start start signal is generated by the second timer 26, and when the start start signal is generated, the determination becomes YES. , when the engine start signal is not generated, the determination becomes NO and the process proceeds to the engine start start timing calculation routine 400. This engine starting start timing calculation routine 4
At 00, based on the detection signals from the outside air temperature sensor 6, inside air temperature sensor 7, and water temperature sensor 8, arithmetic processing is executed to determine how many minutes after that point the engine should be started.

On the other hand, when the determination in the start start time determination step 300 is YES, the advance operation control calculation routine 500
Proceed to. In this advance operation control calculation routine 500, the outside temperature sensor 6, the inside temperature sensor 7, the water temperature sensor 8, the rotation speed detection sensor 9, the vehicle speed sensor 10, the auto air conditioner switch 11, the neutral switch 12, the handbrake switch 13, the temperature setting device 14, door switch 15, accelerator switch 2
Based on each signal from 9, arithmetic processing is executed from a safety check immediately before starting the engine until completion of preliminary operation.

When the vehicle key is inserted into the IG terminal of the key switch 2 and the ignition signal from the ignition switch 17 is applied to the interrupt (INT) 2 terminal while the arithmetic processing of this main routine is being executed, the main routine starts. The arithmetic processing is interrupted and the interrupt start step 600 in the interrupt routine shown in FIG. 4 is reached, and the energization release step 601 is reached.
Proceed to. In this de-energization step 601, a de-energizing signal to stop the engine operation is sent to the first relay circuit 22 and the second relay circuit 23, and a cut-off signal to de-energize the microcomputer 19 is sent to the third relay circuit 24. The program then proceeds to various control calculation routines 602. In this various control calculation routine 602, calculations are performed to control lamps, wipers, etc., although sensors and actuators are not shown in FIG. Thereafter, these various control calculations are repeated at intervals of several hundred milliseconds (msec).

Also, when executing the various control calculation routines 602 or the main routine calculation processing, the bonnut signal from the bonnut switch 16 is
When applied to the INT1 pin, various control calculation routines or main routine calculation processing are interrupted and the fifth
When the interrupt start step 700 in the interrupt routine shown in the figure is reached, the process proceeds to an energization release step 701, where a release signal for stopping the engine operation is issued to the first relay circuit and the second relay circuit 23, and the microcomputer 19 A cutoff signal is issued to the third relay circuit 24 to cut off the current supply to the third relay circuit 24, and the process proceeds to stop step 702, where the arithmetic processing of the microcomputer 19 is terminated.

Next, the engine start start timing calculation routine 40
0 will be explained in detail with reference to the calculation flowchart shown in FIG. First, by arriving at this engine start start timing calculation routine 400, the process proceeds to a temperature input step 401, in which an outside temperature signal from the outside temperature sensor 6, an inside temperature signal from the inside temperature sensor 7,
Based on the water temperature signal from the water temperature sensor 8, the outside air temperature Ta, the inside air temperature Tb, which are required during preliminary operation of the vehicle,
Input the cooling water temperature Tc and judge the air conditioner Step 4
Proceed to 02. In this air conditioner determination step 402, it is determined whether or not an air conditioner signal is generated from the automatic air conditioner switch 11. When the air conditioner signal is not generated, the determination is NO, but when the air conditioner signal is generated, the determination is NO. is YES
Calculation step 403 of first start-up start time
Proceed to. In this first startup start time calculation step 403, the startup start time t is determined using the following formula based on the outside temperature Ta, the inside temperature Tb, and the cooling water temperature Tc so that warm-up and air conditioning are completed by the scheduled boarding time. .

t=f ₁ (Ta, Tb, Tc) ...(1) In this equation, the function f ₁ is determined by the characteristic diagram showing the relationship between temperature T and required engine operation time ta in Figure 2 a. , is stored in advance in the ROM in the microcomputer 19, and the starting start time t indicates the time from the time of this calculation until the engine operation starts. In other words, the time at the time of this calculation is 30 minutes before the scheduled boarding time, and the outside temperature is
When Ta = internal temperature Tb = cooling water temperature Tc = 15°C, the required engine operation time ta in Figure 2a is 3 minutes, so the start time t is 27 minutes. Then, the process proceeds to the next timer output step 404, in which a time signal corresponding to the starting start time t obtained in the first starting start timing calculation step 403 is sent to the second timer 26 and also sent to the third relay circuit 24. A cutoff signal is issued and the process proceeds to stop step 405. and,
At this stop step 405, the arithmetic processing of the microcomputer 19 ends.

On the other hand, the determination in the air conditioner determination step 406 is
If NO, step 40 to calculate the second startup start time.
Proceed to step 6, and use the following formula to find the startup start time t so that warm-up is completed by the scheduled boarding time from the outside air temperature Ta and the cooling water temperature Tc.

t=f ₂ (Ta, Tc) ...(2) In this equation, the function f ₂ is determined by the characteristic diagram showing the relationship between temperature T and warm-up time tb in Figure 2b, and is determined in advance. Microcomputer 19
It is stored in the ROM, and the starting start time t indicates the time from the time of this calculation until the engine operation starts. In other words, when the time of this calculation is 30 minutes before the scheduled boarding time, and the outside temperature Ta = cooling water temperature Tc = 10°C, the warm-up time tb is 5 minutes in Figure 2b, so the startup start time is 30 minutes before the scheduled boarding time. t becomes 25 minutes. Then, the process advances to the next timer output step 404.

Next, the preliminary operation control calculation routine 500 will be explained with reference to the calculation flowchart shown in FIG. First, the advance operation control calculation routine 500 is reached. In some cases, the safety check routine 50
Proceed to step 1 and set the neutral, handbrake, and
The accelerator position is determined, and if there is an abnormality, the process proceeds to a stop step 502 and the calculation processing of the microcomputer 19 is terminated, but if it is determined that there is no abnormality, the process proceeds to the engine start control calculation routine 503. This engine start control calculation routine 503
Then, start energizing the starter 3 and ignition system 4, and determine whether or not the engine can be started based on whether the engine speed is 50 rpm or higher after 1 second has elapsed.If the engine speed is not 50 rpm or higher, then Proceeding to stop step 502, the arithmetic processing of the microcomputer 19 is completed, but if the engine speed is 50 rpm or higher, the engine starts and the outside air temperature Ta and the cooling water temperature Tc are maintained until the engine speed reaches 500 rpm or higher. Starter energization time T _O
The starter is energized until it reaches _N. and,
Proceeding to the next engine rotation speed determination step 504,
It is determined whether the engine speed is 500 rpm or more, and when the engine speed is not 500 rpm or more, the determination is NO, and the number of times calculation routine 505
The program proceeds to count the number of times the engine is at or below the appropriate rotational speed, then proceeds to the timer activation routine 506 to activate the timer for the starter de-energization time T _OFF determined from the outside air temperature Ta and the cooling water temperature Tc, and then the engine start control calculation routine 503 Proceed to. Further, if the engine speed is 500 rpm or more in the engine speed determination step 504, the process proceeds to a warm-up/air conditioning determination routine 507, where it is determined whether or not the warm-up and air conditioning have been completed, and the warm-up and air conditioning are completed. If not, the process advances to safety determination routine 508. In this safety judgment routine 508, the vehicle key is not inserted into the IG terminal of key switch 2 after the door is opened.
When 30 seconds have elapsed or when the vehicle is in motion, a calculation is performed to stop the engine operation and to terminate the calculation processing of the microcomputer 19.
On the other hand, when it is determined in the warm-up/air-conditioning determination routine 507 that the warm-up and air-conditioning have been completed, the process proceeds to a continuation calculation routine 509, where calculations are performed to sustain the warm-up and air-conditioning for only 5 minutes.

Next, the overall operation of advance operation control in various states will be sequentially explained.

First, in order to perform this advance operation, the first timer 25 is set to the scheduled boarding time, the set switch 25a is turned on, and the auto air conditioner switch 11 for air conditioning is turned on, and the boarding time is set 30 minutes before the scheduled boarding time. First, the first timer 25 sends an energizing signal to the third relay circuit 24, and the stabilized power supply circuit 21 supplies the stabilized voltage of 5V to the microcomputer 19. As a result, the microcomputer 19 enters the operating state, starts calculation processing from the start step 100 in FIG. 3, proceeds to the initial setting routine 200, sets the timer data A
A=O, B=O, C=O, D of timer data B, timer data C, timer data D, and number of times data N
Initial settings including =O, N=O are performed, and the process proceeds to start start time determination step 300. Then, in this start start time determination step 300, since the start start signal is not generated by the second timer 26, the determination becomes NO, and the routine advances to an engine start start time calculation routine 400. Then, by arriving at this engine start start timing calculation routine 400, the process proceeds to a temperature input step 401, where the outside temperature is
Enter Ta, internal temperature Tb, and cooling water temperature Tc, and proceed to air conditioner determination step 402. At this time, since the air conditioner signal is generated by turning on the auto air conditioner switch 11, the judgment becomes YES, and the first
The process advances to step 403 for calculating the start time of the engine. Then, the starting start time t calculated by t=f ₁ (Ta, Tb, Tc) is obtained, and the process proceeds to timer output step 404, where a time signal corresponding to the starting starting time t is sent to the second timer 26. At the same time, a cutoff signal is sent to the third relay circuit 24 to cut off the power supply to the microcomputer 19.

Then, when the starting start time t has elapsed, the second
The timer 26 issues an energization signal to the third relay circuit 24 to cause the microcomputer 19 to be supplied with a stabilized voltage of 5V from the stabilized power supply circuit 21, and also sends a start start signal to the microcomputer 19. As a result, the microcomputer 19 enters the operating state and starts calculation processing at the start step 100 in FIG. At this time, since the starting signal has been generated, the determination becomes YES, and the process proceeds to the advance operation control calculation routine 500. Then, in this preliminary operation control calculation routine 500, the engine is started from a safety check immediately before the engine is started, and a step-by-step control calculation is performed until 5 minutes have elapsed after warm-up and air conditioning are completed.

Therefore, warming up and air conditioning are completed by the scheduled boarding time, and if the driver boards the vehicle within 5 minutes from the scheduled boarding time, the driver can immediately depart at a comfortable room temperature.

On the other hand, if this preliminary operation control is performed without turning on the automatic air conditioner switch 11 when air conditioning control is not so necessary in spring or autumn, the engine start timing calculation routine 4 shown in FIG.
When the air conditioner determination step 402 of 00 is reached, the determination becomes NO, and the process proceeds to the second startup start time calculation step 406. And t=f ₂ (Ta,
The starting start time t calculated at Tc) is determined and the calculation is changed to proceed to timer output step 404, and thereafter the same calculation process as described above is performed.

Therefore, warming up is completed by the scheduled boarding time, and if the driver boards the vehicle within 5 minutes from the scheduled boarding time, the vehicle can depart immediately.

On the other hand, if the vehicle key is inserted into the IG terminal of the key switch 2 during the arithmetic processing of the main routine explained above, the arithmetic processing of the main routine is interrupted and the interrupt arithmetic processing is started from the interrupt start 600 shown in FIG. After the calculation of the energization release step 601 is completed, the calculation processing of the various control calculation routines 602 is repeated at a cycle of several hundred milliseconds. Therefore, since the arithmetic processing of the advance operation control is finished and the arithmetic processing of the various control arithmetic routines 602 is performed, the advance operation control by the microcomputer 19 is finished, and thereafter, warming up and air conditioning are performed at the discretion of the driver. .

Furthermore, when the bonnet is opened during the arithmetic processing of the main routine or the arithmetic processing of the various control arithmetic routines 602, the arithmetic processing of the interrupt routine shown in FIG. The power supply to the starter via the second relay circuit 23 and the microcomputer 19 via the third relay circuit 24 is cut off, the operation of the microcomputer 19 is terminated, and the vehicle key is connected to the IG terminal of the key switch 2. If it is not turned on, engine operation will be stopped immediately. Therefore, if the bonnet is opened during advance operation control, engine operation is immediately stopped, which is preferable from a safety standpoint.

Next, when the vehicle key is inserted into the ST terminal of the key switch 2 when preliminary operation is not performed, the starter 3 is energized from the in-vehicle battery 1 via the ST terminal of the key switch 2 and the second relay circuit 23, and at the same time the key switch is turned off. The ignition system 4 is energized from the IG terminal 2, and the engine starts.
At this time, the microcomputer 19 starts its arithmetic processing at the start step 100 in FIG. After completing the release step 601, various control calculations are repeated at a cycle of several hundred milliseconds.
Therefore, the microcomputer 19 does not perform preliminary operation control, but performs calculation processing of various control calculation routines 602.

In addition, in the above example, the outside air temperature, the inside air temperature, and the cooling water temperature are shown as the temperatures required during the preliminary operation of the vehicle, but considering that there is not much difference between these three temperatures during the preliminary operation, only one of them is used. may also be entered. If the typical temperature at that time is the cooling water temperature, equation (1) is t = f ₁ (Tc), and equation (2) is t
= f ₂ (Tc).

In addition, the operating time of the microcomputer 19 in advance operation control is shown as being 30 minutes before the scheduled boarding time and after the starting start time t, but in order to further simplify the circuit configuration, the microcomputer 19 is The timer signal is made to correspond to the scheduled boarding time, and the timer signal is inputted at the time when the scheduled boarding time is set, and the microcomputer 19 checks whether it is 30 minutes before the scheduled boarding time. It may also be possible to determine whether this is the case and then perform preliminary operation control.

As described above, in the first invention of the present application, the time required for preliminary operation of the vehicle is determined based on the required temperature, and the engine is operated for the required time until the scheduled boarding time set in advance. Therefore, by determining the desired time for the pre-driving and running the engine for the required time so that the pre-driving is completed by the preset scheduled boarding time, the engine can be warmed up appropriately. This has the advantage of being able to automatically complete warm-up by the scheduled boarding time, and also allowing air conditioning to be controlled at the same time.

Furthermore, the second invention of the present application has the excellent effect of being able to provide a control device that can appropriately implement the vehicle preliminary operation control method of the first invention.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
Figures 2a and b are characteristic diagrams showing the relationship between temperature and engine operating time, Figure 3 is a calculation flowchart showing the main routine calculation processing by the control program of the microcomputer in Figure 1, and Figure 4 is the control The 5th line is an interrupt calculation flowchart showing the interrupt processing by the program, the 5th line is the interrupt calculation flowchart showing the interrupt processing by the control program, and the 6th line is the calculation showing the calculation process of the engine start start timing calculation routine in Fig. 3. Flowcharts FIGS. 7a, b, and c are calculation flowcharts showing the calculation processing of the advance operation control calculation routine in FIG. 3, 4, 22, 23...a starter, an ignition system, a relay circuit, a relay circuit, which constitutes a driving means, 6,
7, 8...Outside temperature sensor, inside temperature sensor, water temperature sensor constituting temperature detection means, 19...Microcomputer as arithmetic processing means, 24...
Relay circuit, 25... timer as time setting means, 26... timer.

Claims (1)

[Claims] 1. Set the scheduled boarding time, input the temperature required for preliminary operation of the vehicle, calculate the required time for the preliminary operation based on this temperature, and run the engine for this required time until the scheduled boarding time. An advance driving control method for a vehicle characterized by driving the vehicle. 2. Time setting means that issues a timer signal based on a preset scheduled boarding time; Temperature detection means that detects the temperature required during preliminary operation of the vehicle and issues a temperature signal; Based on the temperature signal from this temperature detection means. arithmetic processing means that calculates the required time for the preliminary operation and issues an engine control signal at a time before the required time based on the scheduled boarding time based on the timer signal from the time setting means; An advance operation control device for a vehicle, comprising: a driving means for driving an engine based on an engine control signal.